Results 51 to 60 of about 514 (163)

Normalized solutions of the critical Schrödinger–Bopp–Podolsky system with logarithmic nonlinearity

Transactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract In this paper, we study the following critical Schrödinger–Bopp–Podolsky system driven by the p$p$‐Laplace operator and a logarithmic nonlinearity: −Δpu+V(εx)|u|p−2u+κϕu=λ|u|p−2u+ϑ|u|p−2ulog|u|p+|u|p*−2uinR3,−Δϕ+a2Δ2ϕ=4π2u2inR3.$$\begin{equation*} {\begin{cases} -\Delta _p u+\mathcal {V}(\varepsilon x)|u|^{p-2}u+\kappa \phi u=\lambda |u|^{p-2 ...
Sihua Liang, Xueqi Sun, Shuaishuai Liang, Vicenţiu D. Rădulescu   +3 more
wiley   +1 more source

Identification of random coefficient latent utility models

Quantitative Economics, Volume 16, Issue 4, Page 1223-1265, November 2025.
This paper provides nonparametric identification results for random coefficient distributions in perturbed utility models. We cover discrete choice and models of multiple purchases. We establish identification using variation in mean quantities. The results apply even when an analyst observes only aggregate demands but not whether goods are chosen ...
Roy Allen, John Rehbeck
wiley   +1 more source

Multiple homoclinic solutions for a class of nonhomogeneous Hamiltonian systems

Boundary Value Problems, 2018
By introducing a new superquadratic condition, we obtain the existence of two nontrivial homoclinic solutions for a class of perturbed second order Hamiltonian systems which are obtained by the mountain pass theorem and Ekeland’s variational principle.
Chunhua Deng, Dong-Lun Wu
doaj   +1 more source

One remark to Ekeland's variational principle

Computers & Mathematics with Applications, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Arutyunov, A., Bobylev, N., Korovin, S.
openaire   +1 more source

Unified gross substitutes and inverse isotonicity for equilibrium problems

Theoretical Economics, Volume 20, Issue 3, Page 941-971, July 2025.
We introduce a notion of substitutability for correspondences and establish a monotone comparative static result. More precisely, we introduce the notions of unified gross substitutes and nonreversingness and show that if Q:P⇉Q is a supply correspondence defined on a set of prices P, which is a sublattice of RN, and Q satisfies these two properties ...
Alfred Galichon, Larry Samuelson, Lucas Vernet   +2 more
wiley   +1 more source

Exact and approximate vector Ekeland variational principles

Optimization, 2021
Producción ...
T. Q. Bao, C. Gutiérrez, V. Novo, J. L. Ródenas-Pedregosa   +3 more
openaire   +2 more sources

The impact of bureaucracy and managerialism on relationship‐based practise: A mixed methods study of frontline social work in Northern Ireland

Social Policy &Administration, Volume 59, Issue 3, Page 438-453, May 2025.
Abstract Combining quantitative data from a national survey (n = 252) with qualitative interviews with frontline social workers (n = 16), this manuscript examines the ways in which bureaucracy and managerialism has impacted social work in Northern Ireland, with specific attention to relationship‐based practise.
Katheryn Margaret Pascoe
wiley   +1 more source

Existence and multiplicity of solutions for a class of ( p , q ) $(p,q)$ -Kirchhoff system with combined nonlinearities on graphs

Boundary Value Problems
By using the well-known mountain-pass theorem and Ekeland’s variational principle, we prove that there exist at least two fully nontrivial solutions for a ( p , q ) $(p,q)$ -Kirchhoff elliptic system with the Dirichlet boundary conditions and ...
Zhangyi Yu, Junping Xie, Xingyong Zhang
doaj   +1 more source

On a nonhomogeneous quasilinear eigenvalue problem in Sobolev spaces with variable exponent [PDF]

, 2006
We consider the nonlinear eigenvalue problem $-{\rm div}(|\nabla u|^{p(x)-2}\nabla u)=\lambda |u|^{q(x)-2}u$ in $\Omega$, $u=0$ on $\partial\Omega$, where $\Omega$ is a bounded open set in $\RR^N$ with smooth boundary and $p$, $q$ are continuous ...
Mihailescu, Mihai, Radulescu, Vicentiu
core   +1 more source

The Future of Artificial Intelligence in Mental Health Nursing Practice: An Integrative Review

International Journal of Mental Health Nursing, Volume 34, Issue 1, February 2025.
ABSTRACT Artificial intelligence (AI) has been increasingly used in delivering mental healthcare worldwide. Within this context, the traditional role of mental health nurses has been changed and challenged by AI‐powered cutting‐edge technologies emerging in clinical practice. The aim of this integrative review is to identify and synthesise the evidence
Lucian H. Milasan, Daniel Scott‐Purdy
wiley   +1 more source